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J-LINK cann't connet to board

Hi 

I got a nrf52833 dk and followed "nrf52833_heart" SDK file readme file is success

next step  I install segger studio and JLink_Linux_V662d_x86_64.

wend i open studio try to connet nrf52833 is alerat issue 

fllowing

How can i do to connect nrf52833 in studio?

OS: ubuntu 18.4

Connecting 'J-Link' using 'USB'
Connecting to target using JTAG
Loaded /usr/share/segger_embedded_studio_for_arm_4.50/bin/libjlinkarm.so
Firmware Version: J-Link OB-SAM3U128-V2-NordicSemi compiled Jan 21 2020 17:30:48
DLL Version: 6.62a
Hardware Version: V1.00
Target Voltage: 3.300
Device "NRF52833_XXAA" selected.
InitTarget() start
InitTarget() end
TotalIRLen = ?, IRPrint = 0x..000000000000000000000000
InitTarget() start
InitTarget() end
TotalIRLen = ?, IRPrint = 0x..000000000000000000000000
InitTarget() start
InitTarget() end
TotalIRLen = ?, IRPrint = 0x..000000000000000000000000
InitTarget() start
InitTarget() end
TotalIRLen = ?, IRPrint = 0x..000000000000000000000000
InitTarget() start
InitTarget() end
TotalIRLen = ?, IRPrint = 0x..000000000000000000000000
InitTarget() start
InitTarget() end
TotalIRLen = ?, IRPrint = 0x..000000000000000000000000
InitTarget() start
InitTarget() end
TotalIRLen = ?, IRPrint = 0x..000000000000000000000000
InitTarget() start
InitTarget() end
TotalIRLen = ?, IRPrint = 0x..000000000000000000000000
InitTarget() start
InitTarget() end
TotalIRLen = ?, IRPrint = 0x..000000000000000000000000
InitTarget() start
InitTarget() end
TotalIRLen = ?, IRPrint = 0x..000000000000000000000000
InitTarget() start
InitTarget() end
TotalIRLen = ?, IRPrint = 0x..000000000000000000000000
InitTarget() start
InitTarget() end
TotalIRLen = ?, IRPrint = 0x..000000000000000000000000
InitTarget() start
InitTarget() end
TotalIRLen = ?, IRPrint = 0x..000000000000000000000000
InitTarget() start
InitTarget() end
TotalIRLen = ?, IRPrint = 0x..000000000000000000000000
Failed to connect to target.
No idcode detected.
Please check connection and Target Interface Type

Failed to connect to target.
No idcode detected.
Please check connection and Target Interface Type

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